Dave Rennie took the blame for Australia's record 57-22 Bledisloe Cup defeat to rampant New Zealand at Eden Park on Saturday.

The All Blacks ran riot in Auckland, scoring eight tries to retain the trophy for a 19th successive year and secure a bonus point-victory in their first game of the Rugby Championship.

New Zealand only led 21-15 at half-time, but Codie Taylor claimed a double as Ian Foster's side tore the Wallabies apart after the break.

Australia head coach Rennie took responsibility for a chastening drubbing at the hands of their trans-Tasman rivals.

He said: "Everything falls back on me. We went in with a plan. If we can't execute that plan, we'll seriously look at what we’re doing.

"We want to have an optimistic mindset around how we play, but you've got to play what's in front of you.

"In the end, the players are implementing what we're trying to put on the park. So clearly we'll take responsibility for it."

Yeah, it means a lot  pic.twitter.com/zwlk7J0Gvx

— All Blacks (@AllBlacks) August 14, 2021

Rieko Ioane, David Havili, Sevu Reece, Ardie Savea, Brodie Retallick and Will Jordan also crossed in a devastating display from the All Blacks.

New Zealand head coach Foster was delighted to see his side take command in ruthless fashion following the interval.

He said: "We wanted to respond. The reason we had to respond is we knew the Aussies would lift. They played a combative, physical game in that first 40 and you could see they wanted to take us on up front.

"It was a good old ding-dong Test match in that first period. But we stuck to our plan, even when we lost a couple of things early. We didn't panic, or go away from what we wanted to do.

"What was exciting was when we got the opportunity, particularly with the ball, the group [Savea, Ioane and Taylor] were quite lethal at latching into the space in front of them.

"Plum [forward coach John Plumtree] is doing a lot of work in that ball-carrying space and breakdown space and today we reaped some rewards out of that."